Patch "NFS41/flexfiles: zero out DS write wcc" has been added to the 4.2-stable tree

Patch "NFS41/flexfiles: zero out DS write wcc" has been added to the 4.2-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    NFS41/flexfiles: zero out DS write wcc

to the 4.2-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     nfs41-flexfiles-zero-out-ds-write-wcc.patch
and it can be found in the queue-4.2 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 5420401079e152ff68a8024f6a375804b1c21505 Mon Sep 17 00:00:00 2001
From: Peng Tao <tao.peng@primarydata.com>
Date: Sat, 22 Aug 2015 06:40:00 +0800
Subject: NFS41/flexfiles: zero out DS write wcc

From: Peng Tao <tao.peng@primarydata.com>

commit 5420401079e152ff68a8024f6a375804b1c21505 upstream.

We do not want to update inode attributes with DS values.

Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/nfs/flexfilelayout/flexfilelayout.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -1199,6 +1199,8 @@ static int ff_layout_write_done_cb(struc
 	    hdr->res.verf->committed == NFS_DATA_SYNC)
 		ff_layout_set_layoutcommit(hdr);
 
+	/* zero out fattr since we don't care DS attr at all */
+	hdr->fattr.valid = 0;
 	if (task->tk_status >= 0)
 		nfs_writeback_update_inode(hdr);
 


Patches currently in stable-queue which might be from tao.peng@primarydata.com are

queue-4.2/nfs41-flexfiles-zero-out-ds-write-wcc.patch
queue-4.2/nfs41-flexfiles-update-inode-after-write-finishes.patch